Big Sur weather in May 2025

Expect 18°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Big Sur in May. Check more long-term weather averages for Big Sur in May before you book your next holiday to California in 2025/2026.

  • 18°C maximum daytime temperature in May in Big Sur18
    18°C max day temperature
  • 11 hours of sunshine per day
  • 3 days with some rainfall in May in Big Sur3
    3 days with some rainfall
  • 6°C minimum night-time temperature in May in Big Sur6
    6°C min night temperature
  • 14 hours of daylight per day in May in Big Sur14
    14 hours of daylight per day
  • No heat & humidity in May in Big Sur0
    No heat & humidity
  • 14 mm monthly rainfall in May in Big Sur14
    14 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in May in Big Sur9
    9 (Very High) UV index
  • 12°C sea temperature in May in Big Sur12
    12°C sea temperature

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The May weather guide for California (Big Sur) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about California

How hot is it in Big Sur in May?

Daytime temperatures usually reach 18°C in Big Sur in May, falling to 6°C at night.

How sunny is it in Big Sur in May?

There are normally 11 hours of bright sunshine each day in Big Sur in May - that's 75% of daylight hours.

How warm is the sea around Big Sur in May?

The average sea temperature around Big Sur in May is 12°C.

Does it ever rain in Big Sur in May?

There are usually 3 days with some rain in Big Sur in May and the average monthly rainfall is 14mm.

Big Sur May sunrise & sunset times

Browse the sunrise and sunset times for Big Sur in May 2025. Select a month to view Big Sur sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:14 18:55
Friday, 16th May 2025 05:00 19:08
Saturday, 31st May 2025 04:51 19:19

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